Okay so a little update here. I manually defragged the individual file, which sorted that problem. However, the next file after that one then caused defraggler to stop as well. So I then degragged the entire folder. It not goes up to 19% before it stops. It crashed and asked me to send a report which I did and placed the same email adress as I used when signing up, if you're able to locate it.
Am I just going to have to manually defrag all of the difficult ones?